condition mean min max ZT0-3 47.3678 47.3678 47.3678 ZT4-7 33.813900000000004 33.813900000000004 33.813900000000004 ZT8-11 35.654700000000005 35.654700000000005 35.654700000000005 ZT12-15 59.57945 59.57945 59.57945 ZT16-19 62.95735 62.95735 62.95735 ZT20-23 48.190349999999995 48.190349999999995 48.190349999999995